Our Dermatologists

Australian doctors with specialist medical training.

Our dermatologists are registered medical specialists who have completed a four year specialist training program and obtained a Fellowship of the Australasian College of Dermatology (FACD).

Dermatologists specialise in the diagnosis, treatment and prevention of skin diseases and skin cancers for patients of all ages, from babies and children to adolescents and adults. They are also experts in the diagnosis and management of disorders affecting hair, nails and the wet areas of the mouth and genitalia.

Dr. Rhonda Harvey

BSc (Med), MBBS (Hons)(UNSW), PhD, FACD

Principal Dermatologist + Mohs Micrographic Surgeon

Dr Harvey graduated with honours in medicine from the University of New South Wales in 1999. As part of her post graduate training, Dr Harvey completed the Basic Surgical Training Program with the Royal Australian College of Surgeons while completing her PhD (Head & Neck Squamous Cell Carcinomas) with the Cancer Research Program at the Garvan Institute of Medical Research. Before commencing Dermatology training, Dr Harvey consolidated her research by undertaking a Post Doctoral Research Fellowship at the Dermatology Research Laboratories at the University of Sydney.

Dr Harvey began clinical Dermatology training in 2006 at the Royal Prince Alfred Hospital, St Vincent’s Hospital, Liverpool Hospital and Westmead Hospital hospitals while also completing rotations at the Skin & Cancer Foundation Australia, Darlinghurst and Westmead facilities.

Dr Harvey received a Fellowship of the Australasian College of Dermatologists (FACD) in 2010 after completing 4 years of fellowship training and completed a Mohs Surgical Fellowship at the Skin & Cancer Foundation, Westmead in 2011.

Professional interests include Skin Cancer & Melanoma Management, Mohs Surgery, Non-surgical Skin Cancer Management (including Photodynamic Therapy), Moderate to Severe Acne, Dermatitis & Eczema, Facial Pigmentation, Cosmetic and Non-cosmetic Laser.


Dr. Clare Shui Lyn Koh

BSc (Med), MBBS (Hons)(USYD), FACD

Dermatologist

Dr Clare Koh graduated with honors from the University of Sydney in 2005 with a Bachelor of Medicine and Bachelor of Surgery. Dr Koh began clinical Dermatology training in 2011 and received fellowship with the Australasian College of Dermatologists in 2015.

Dr Koh is interested in the diagnosis and management of all aspects of diseases of the skin including the diagnosis and management of skin cancer.


Dr. Gilberto Moreno Bonilla

MBBS (AMC), FACD

Dermatologist

Dr Gilberto Moreno Bonilla graduated from Rosario University (Colombia) in 2003 and achieved Australian Medical Council recognition in 2006 whilst conducting clinical Dermatology research through the University of New South Wales. He successfully completed Basic Physicians Training and examinations in 2011, and broadened his medical experience through the St Vincents Area Health Network. During his Dermatology training he spent a year in the UK focusing on the multi-disciplinary management of skin cancer and connective tissue disorders. Other hospital attachments included Westmead Adults Hospital, Westmead Children’s Hospital, The Skin Hospital Westmead and Royal Prince Alfred Hospital where completed Dermatology training in 2016.

Dr Moreno Bonilla holds Conjoint Lecturer positions at the Medical Schools of University of New South Wales & University of Sydney and is committed to the education of junior doctors and Dermatology research. His work has been presented at local and international meetings, and has also been published in peer reviewed medical journals for the past 12 years.


Dr. Vernon Pua

MBBS (Hons)(USYD), MPH, FACD

Dermatologist

Dr Vernon Pua graduated with honours in medicine from the University of Sydney. Dr Pua has worked closely with the Royal Prince Alfred Hospital, The Royal Adelaide Hospital, St Vincent’s Hospital, The Skin Hospital Darlinghurst, the Prince of Wales Hospital and Sydney Children’s Hospital. He is also a member of the American Academy of Dermatologists.

Dr Pua has a special interest in skin cancer, rosacea and cosmetic dermatology. His postgraduate qualifications include a Masters in Public Health and a fellowship from the Australasian College of Dermatologists.

Dr Pua has performed additional research into skin tanning with the alpha-melanocyte stimulating hormone and evaluation of surgical treatment of skin cancer. For his work in these areas he has received the Schering-Plough award for dermatology research.


Dr. Michael Liu

MBBS (UNSW), BSc (Med), MMED (USYD)

Dermatology Registrar

Dr Michael Liu is an advanced trainee in dermatology. As a medical student he won a Medical Defence Union Bursary award, allowing him to travel to Hong Kong to further his surgical skills. He has a clinical background in intensive care, including a full year of intensive care and retrieval medicine at John Hunter Hospital, as well as general medicine, and as a medical registrar he won the prestigious award of Registrar of the Year at both Wollongong Hospital and Prince of Wales Hospital.

Whilst gaining experience in dermatology he worked under the tutelage of both Professor Ross Barnetson and Professor Wolfgang Weninger in the Biologics Clinic for severe psoriasis patients at Royal Prince Alfred Hospital, gaining valuable experience in the use of biologics. This was further augmented with a clinical placement at Liverpool Hospital Dermatology Department which includes a large Biologics Clinic.


Our Support Staff

Professional, patient-oriented and friendly people.

At Green Square Dermatology we believe that through our specialised and dedicated clinical staff, we can achieve the best outcomes for our patients. We are committed to attracting and working with talented medical specialists and clinical staff to help us meet our vision … to make our patients our priority.

K.e|n.n|e.t|h   H|a.r|v.e|y

Business Manager

With over 20 years experience in finance and enterprise IT systems, Kenneth brings a fresh perspective to medical practice management. Hands-on experience in almost every aspect of daily operation allows him to be responsive and empathetic to patient expectations.

Kenneth has a special interest in efficient and eco-friendly business processes, from custom-built low-power servers to paperless business workflows.


Melanie Macnab

Clinical Nurse

Melanie is a caring, empathetic and knowledgeable nurse who provides personalised care for each of her patients.

Starting her career as an Australian Army trained medic, Melanie brings over 25 years of nursing experience, ranging from surgical wards to emergency care, to our medical practice. Her studies in anthropology allow her to understand patient needs and apply care cognisant of different cultural views.

Responsible for managing and supporting day-to-day medical services and treatments directed by the dermatologists, Melanie delivers her care with a smile and professional manner.


Maggie Tseung

Clinical Nurse

An enthusiastic, compassionate and friendly nursing professional, Maggie is a Registered Nurse with experience in the private and public healthcare systems.

Responsible for managing and supporting day-to-day medical services, Maggie is invaluable in assisting our Dermatologists with surgical procedures, patient education and after-care.

Maggie has a special interest in cosmetic laser procedures and is currently completing her training under Dr Rhonda Harvey.


Michelle Weaich

Clinical Nurse

An energetic, friendly and professional individual, Michelle works closely with our clinic and other specialist dermatology centres.

Michelle works closely with our core Clinical Nurses and Dermatologists to provide our patients with quality dermatological health care.


Dana Mitic

Office Manager

Professional, cheerful and one of the nicest people you’ll ever meet, Dana is responsible for providing a continuity of service between our patients and our dermatologists.

Dana originally comes from dental background, and is committed to making our patient’s experience a positive one. When Dana is not in the office, she’s outdoors enjoying nature and country music!


Isabelle Riley

Medical Receptionist

With a great work ethic and medical background, Isa is helpful and responsive to all our patient’s needs.

Isa is currently completing a Nursing degree and has a passion for improving the mental health of the community, receiving several awards for her community work.


Sebastian Crabbe

Medical Receptionist

As a thoughtful and professional team member, Sebastian takes great personal satisfaction in helping patients connect with our Dermatologists.

With his debut into a medical specialist environment, Sebastian is also juggling University studies in the field of music.


Joany Badenhorst

Medical Receptionist

South African by nature and an adventurer at heart, Joany has a great energy and personal drive to ensure a positive experience for our patients.

Joany is a local to our area and loves good coffee, family and any winter sport. During winter breaks Joany is permanently attached to her snowboard and competes professionally around the world.


Pav Kurup Pratap

Medical Receptionist

With a background in people-facing roles, Pav is committed to providing our patients with friendly and professional service.

Pav is currently completing a Master of International Relations degree and consumes more coffee each day than she cares to admit. In her spare time you will find her planning mini getaways or binge-watching comedy TV.


Sydney Fletcher

Medical Receptionist

Entirely friendly, energetic, and welcoming. Sydney always strives to ensure our patients have a personal and positive experience.

Sydney is an adrenaline seeker at heart. As a dive professional on weekends, she can also be found surfing or riding her motorbike. Sydney is also fond of nutrition, talking life, and is a major podcast fanatic.


Blake H.a.r.v.e.y

Office Intern

As one of the youngest members of the Green Square Dermatology team, Blake has been involved in our family run clinic since he was 2 years old.

Blake assists with the day-to-day running of the clinic, accumulating valuable inter-personal, communication and business skills … but only after he’s finished his homework.


Cameron H.a.r.v.e.y

Office Intern

Cameron has grown up in our clinic and helps out where he can by cutting up paper, putting stickers everywhere and distracting our staff!

Cameron has an photographic memory when it comes to Paw Patrol, Blaze and the location of all lollies and chocolates in the clinic.